le poidevin



(No Model.)

S T. LE POIDEVINQ MACHINERY FOR MOLDING BRICKS AND TILES.

N0. 271. 375. Patented Peb.6,1883.

.H U I I Q @09 S S Jay'/ INYENTOR 2 Ina/Lug ATTORNEYS.

WITNESSES N. FUER$ Fhulvulboglipblr. Washinglnn. D. C.

NiTE

YATENT FFICE.

'ruoitAsLn POIDEVIN, or eunnnsnv, ENGLAND.

MACHiNERY FOR MOLDING BRICKS AND TILES.

SPECIFICATION forming partcf Letters Patent No. 271,875, dated February6, 1883. Application filed October 18,1882. (Nn modeL) Patented inEngland February 2e, 1882, No. 980, and in France August 26, 1882.

' ratus for molding bricks or tiles; and the inven tion consistsessentially in the combination,

' with a pug-mill, of an endless series of molds a the kiln.

supported on traveling platforms or trucks running on a railway beneaththe pug-mill, and receiving the clay direct therefrom, the train-ofcarriages and molds being made to travel-along, as fast as the molds arefilled, by

gear from the pug-mill, the molded bricks being left on the trucks bythe molds and conveyedto the back by the trucks, which are re-. turned,unloaded, by another line of rails, to again carry empty molds beneaththe pug-mill. The trucks may also be employed alonefor conveying thedried bricks from the hack to The pug-mill may be placed in theclay-pits, whereby the expense of cartage is avoided. i

In order that, the invention may be more readily understood, I haveillustrated it in the accompanying drawings, in which- Figures 1 and 2are side and end elevations, and Fig. 3 a horizontal sectional plan, ofmy improved apparatus. Figs. at and 5 show details of the molds.

A is the pug-mill, worked by horse or steam power. It is so constructedas to allow a train of trucks and molds to pass beneath the bottom,which is provided with two discharge orifices, a a, corresponding inwidth tothe length of the molds, through which the clay is forced by theaction of the mill into the molds passing beneath it.

B is a train of trucks running on a railway beneath the pug-mill A. Thetrucks are low horizontal platforms on wheels or rollers, and ofsufficient strength to" carry a load of four hundred or five hundreddried bricks, when to be used also for conveying the bricks from thehack to the kiln.

G are two endless chains of brick-molds,

running round tumblers D I) D D and also 7 passing beneath the pug-mill,the two chains running side by side, and passing over the pug-mill ateither side of its shaft. The portions of the chains of molds betweenthe tumblersl) and I) rest upon the trucks B, as shown, the molds beingcarried along by the trucks.

E is a weighted roller, resting on the edges of the molds at the exitside of the pug-mill,

by which the clay is pressed down into the molds.

F is a striker, (which may be provided with an adjusting-screw forregulating its height,) by which the excess of clay is removed from themolds.

G are pallet-boards, which are laid down on the trucks side by side inregular order before the truck is pushed beneath the molds, so that themolds will come down truly upon them, as shown. The pallet-boards areformed with a swell or kick upon their upper surface, and they form thebottoms of the molds, (which are merely open or bottomless rectangularframes, as hereinafter described,) the bricks being thus made on theflat with the hollow underneath.

H are the molded bricks as left on the pal let-boards on the trucks bythe molds.

The trucks, with the pallet-boards laid on them, are pushed up to thepug-mill by hand, after which they are successively driven be neath thepug-mill by a pinion, t, on a shaft, I,

gearing with a rack, Z), fixed longitudinally be- K, running onchain-wheels k 70, operated by bevel-gear from the pug-mill shaft, asshown in Fig. 2. The truck, actually being driven, pushes those in frontof it along beneath the roller and scraper, as above mentioned, untilthey are clear of the machine. The trucks are then pushed on toward thehack, and the bricks taken up, one at a time, by placing a plainpallet-board upon each brick, and so put on the hack in the usual way.

The correct register of the chains of molds, with the pallet-boards, maybe insured by providing lugs (not shown) upon the chains at intervalscorresponding to. the length of the 'trucks,which shall project downwardbetween p the molds.

M are drums containing sand, mounted to rotate on horizontal axes abovethe chains of molds, and driven by gear-wheels m m from the adjacenttumblers D D. These drums have perforations or apertures in theirperipheries, through which the sand is discharged for the purpose ofsanding the molds. The molds are open rectangular frames, and have eachonly three sides. (as shown in Figs. 4and 5,) the fourth side being madeby the adjacent mold, so as to enable the molds to open, as they passround the tumbler D to free the molded brick and leave it on the truck.These moldframes 0 are jointed together in endless series by rule-jointsc, as shown. Each mold is pr0vided with a downwardly-projectinglug, 0,ateach side, which come between the pallet-boards, as they lie on thetruck, and as the mold rises, on turning round the tumbler D these lugs0 push the pallet-board, with the brick upon it, onward slightly to freethe brick of'the mold.

Having described the nature ofthe said invention and the manner ofperforming the same, I declare that what 1 claim is.

Theimproved machinery for molding bricks and tiles, consisting of apug-mill having suitable discharge-orifices in the bottom, of series ofmolds, and of trucks supporting and carrying themoldsin successionbeneath the pugmill, so as to receive the clay therefrom, and ofsuitable devices for pressing the clay into the molds and removing theexcess, all combined, arranged, and operating substantially ashereinbef'ore described, and represented in the drawings annexed.

THOMAS LE POIDEVIN. Witnesses:

JOSEPH N AFTEL, 0f 5 Manor Street, Guernsey, Solicitor.

J. B. MARQUAND, 0f 29 High Street, Guernsey, Notary.

